/* Copyright (C) 2004 - 2006  db4objects Inc.  http://www.db4o.com

This file is part of the db4o open source object database.

db4o is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL 
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.

db4o is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */
namespace Db4objects.Db4o.Internal.CS.Messages
{
	public sealed class MReadMultipleObjects : Db4objects.Db4o.Internal.CS.Messages.MsgD
	{
		public sealed override bool ProcessAtServer(Db4objects.Db4o.Internal.CS.ServerMessageDispatcher
			 serverThread)
		{
			int size = ReadInt();
			Db4objects.Db4o.Internal.CS.Messages.MsgD[] ret = new Db4objects.Db4o.Internal.CS.Messages.MsgD
				[size];
			int length = (1 + size) * Db4objects.Db4o.Internal.Const4.INT_LENGTH;
			lock (StreamLock())
			{
				for (int i = 0; i < size; i++)
				{
					int id = this._payLoad.ReadInt();
					try
					{
						Db4objects.Db4o.Internal.StatefulBuffer bytes = Stream().ReadWriterByID(Transaction
							(), id);
						if (bytes != null)
						{
							ret[i] = Db4objects.Db4o.Internal.CS.Messages.Msg.OBJECT_TO_CLIENT.GetWriter(bytes
								);
							length += ret[i]._payLoad.GetLength();
						}
					}
					catch (System.Exception e)
					{
					}
				}
			}
			Db4objects.Db4o.Internal.CS.Messages.MsgD multibytes = Db4objects.Db4o.Internal.CS.Messages.Msg
				.READ_MULTIPLE_OBJECTS.GetWriterForLength(Transaction(), length);
			multibytes.WriteInt(size);
			for (int i = 0; i < size; i++)
			{
				if (ret[i] == null)
				{
					multibytes.WriteInt(0);
				}
				else
				{
					multibytes.WriteInt(ret[i]._payLoad.GetLength());
					multibytes._payLoad.Append(ret[i]._payLoad._buffer);
				}
			}
			serverThread.Write(multibytes);
			return true;
		}
	}
}
